Home / 121,039.92-166,785.48-119,406.96

Finding the Fourth Proportional to 121,039.92, 166,785.48 and 119,406.96

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Solution

The fourth proportional to 121,039.92, 166,785.48 and 119,406.96 is: 164,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,039.92 : 166,785.48 = 119,406.96 : x
  2. Step 2: Convert to fraction form
    121,039.92/166,785.48 = 119,406.96/x
  3. Step 3: Cross multiply
    121,039.92x = 166,785.48 × 119,406.96
  4. Step 4: Simplify right side
    121,039.92x = 19,915,347,138.94
  5. Step 5: Solve for x
    x = 19,915,347,138.94/121,039.92
  6. Step 6: Final answer
    x = 164,535.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.